Vibration Response Imaging (VRI) in Lung Cancer Patients

Primary Objective: * To estimate the accuracy of the pre-operative VRI QRF (Quantitative Regional Function) results versus the gold standard QRRVP (Quantitative Radionuclide Study of Regional Lung Ventilation and Perfusion) pre-operative scan. Secondary Objective: * To assess the correlation of the predicted post-operative lung function with the observed post-operative lung function (FEV1 and DLCO) in patients who underwent surgical resection. (FEV1 = Forced expiratory volume in 1-second. DLCO = Diffusion capacity for carbon monoxide. ppo = predicted postoperative.)